Peptide Osta stack overkill or just right.

Well first off I'm very new to this whole Sarm/peptide stuff. So I'm definitely looking for some advice here from more experienced users. I'm giving this a go and it's my first cycle of anything aside from protein and creatine since my horrible experience with an SD Epi bridge that left me with Jaundice for 6 months. plenty of time has passed I've gained all my weight back/mostly muscle, but I am looking to trim the fat gain or maintain some muscle and increase strength/size or appearance. Any way here is what I'm looking to run.

Let me know if it looks good advice ect.... I know doses aren't the highest i've seen but I'm not a very big guy definitely fit/strong @ 5'3" 170lb. Also i'm having a hard time finding out if peg mfg needs to be pinned directly into the muscle or does it matter if you chose a different site.